Method for producing seamless artificial sausage skins



Aug. 4, 1925.

o. w. BECKER METHOD FOR PRODUCING SEAMLESS ARTIFICIAL SAUSAGE sxms Filed June 1925 my. i

Patented A118? 4 1,548,504 UNITED STATES PATENT OFFICE.

OSKAR WALTER BECKER, OF STUTTGAET, GERMANY.

METHOD FORI RODUCI NG SEAMLESS ARTIFICIAL SAUSAGE SKINS.

Application filed June 8, 1925. Serial" m. 85,829.

To all whom it may concern:

Be it known that I, OSKAR WVALTER BECKER, citizen of Germany, residing at Stuttgart, Germany, have invented certain new. and useful Improvements in Methods for Producing Seamless Artificial Sausage Skins (for which I have filed an application in Germany on 4th February, 1924:), of which the following is a specification.

For manufacturing. seamless artificial skins there have been a'number of methods suggested. For instance, there 'is a dipping method wherein round bars forming cores are dipped into a suitable viscous mass or fluid-such as gelatine or viscose, the skin thus produced being hardened by means of drawing it through a circular opening an after the hardening, loosening it from the core. There is also a pressing method in which viscose or a similar non-hardening mass is squirted through an annular nozzle after which it is washed with a hardening applying a mass of the sausage formerly presented means. There is also the impregnating method wherein a suitablefabric is covered or impregnated with a mass consisting of comminuted or disintegrated flesh, comminuted skin or the like, together with the addition of blood plasm, and is then allowed to dry on a solid core.

This invention starts with the latter method in producing seamless artificial skins by animal or vegetable album1n or albuminoid on .a tubular fabric, with the difference, however, that the mass together with thetubular fabric is passed through an annular nozzle in a thin film and the material then dried. After this the tubular fabric is loosenedland pulled ofi of 7 material. By means of this new method the various defects are completely avoided. One such defect was the our appearance of skins former y produced which were therefore incapable of use for sausage products of high quality. Further by means of the old method the skins would not snugly fit the sausage materialor else they were too pervious to moisture and gave rise to a sweating out of the sausage material and us to decrease in weight, and also caused too rapid drying.

- condition that it can In carrying out the new method a mass of albumin or albuminoid of animal or vegetable origin consisting of glue giving cells is brou ht mto such a or glue substances,-

be readily pressed after being subjected to the known soaking or swelling process such as by means of gelatine dissolved 1n glycerlne of a suitable concentration. The material is treated to this soakingprocess after integration. pressed onto a tubular fabric whichvdraws it through an annular nozzle whereby the mass is given the necessary skin compactness.

When the mass isdried, which may be accelerated by use of dry air or the addition of alcohol or the like,"the film pressed onto the fabric which preferably was previously treated with a caustic alkali such, for example, as gaseous ammonia, is then separated from the fabric by means of catching a previous mechanical dis- 'hold-of the fabric at its end and pulling it through the inside of the tubular film to its full length. from the film may under certain conditions be facilitated by operating so that the film at its end is not directly pressed ontothe tubular fabric but is pressedonto a short intermediate layer of ing the fabric. 'At this end. the fabric can be easily peeled off due to the intermediate layer so as to facilitate catching hold of it for; pulling it through the tubular film.

In order that the invention can be. clearly The mass thus' formed is- This pulling of the fabric away paper or the like surroundunderstood an apparatus such as is described and claimed in my copending U. S. application, Serial No. 35,830, filed June 8, 1925, is described with reference to the accompanying drawings wherein: e I

Fig. 1- is a vertical section of an apparatus adapted to carry out this invention.

Fig. 2 is a vertical section of a floating core taken at right angles to the plane of Fig. 1. i

Fig. '3, is a perspective view of the core. Fig. 4 isa sectional plan view of the .core.

filled withthe material by means of pressure, the material passing out through the side view of the de-' annular space between the fabric 1 and the outlet opening 4, these parts thusforming an'annular nozzle. As the tubular fabric is pulled along over thecore it is covered with a film of albuminous material. The core 3 and tubular fabric 1 is held in a tubiilar guide 7 having an opening sufliciently large to permit the fabric to pass through the space between the guide 7 and the core 3.

To sustain the weight of the core and the strains which-it undergoes due to the fabric being pulled-over the core there are provided at the outside of the vessel 5, irregularities in the cross section of said core without,

however, changing the peripheral measurement of any cross section. In the construction according to Figs. 1 to 5 this variation comprises two flat portions 8 and 9 arranged at 90 to one another. Two pairs of rollers 10 and 11 are placed to bear against the flat portions and constitute supporting members to take up all force and strains exertedby the operation on the core which is thus float ingly held'in fixed position.

As explained above the flattened portions are so dimensioned that regardless of' the shape of any cross section of the core the peripheral measurements of all such cross sections are equal, so thatthe fabric drawn over the core will closely conform to the surface of the core. When this condition of uniform peripheral measurement is substantially attained there isfassurance that the fabric will not fold, but willpass the ide rollers 10 and 11 in a smoothmanner. ince the rollers securely sup ort the core, from outside the vessel -5 an tudinal that the tubular fabric pea-be given any desired length without 'fnecessitatingany prolongation of the core 35, Av similar con; struction is shown in Figs;- 5 and Gandin single flattened portion 12 Fwhich,'- however, is bent so" that one portion Q-"13 is positioned horizontally and acts-res a -JhoQk. -This flattened by: rollers 14, 15, 16' and17fin' such a-manner that all force'and strain ftending to move -the core are-transmitted to the rollers so that the core is 'floatingly suspended." In this construction as in the first constructi'on described the peripheral measureequal so Lth'at-the' core withbut folding.

ments'ofallci'oss sections-of the'core are fabric can pass over the The proper positlonin of the core is assisted, in addition to tie rollers," by the tubular'guide 7.' "The mass forced into the vessel Sunder pressure is compelled to surprevent all longithis case the'core is provided/with but a portion 12.;can-b readilysupported opening 4 and the guide 7, throughout the .entire circumference of the core.

- In counter-distinction to the the methods known heretofore t e artificial sausage skins produced in the above described manner, due to the pressure used in applying the film to the fabric, can bear "a muchgreaterressure when the sausage material 1s stuffed into them. Skins so produced are so strong that after the sausage is finished it will not be .cut through by tying it off. Also under normal conditions sausages produced in sucli'a manner can be stored for. an unlimited length of time.

In spiteof thepressure used in forming the skins, the capacity for curing the sausage is in no manner 'im aired. In curing the smoke' is quickly ab usualquick curing processes can be readily used. .The finished sausage has the same appearance as the natural intestine sausage skin without impairing the easy loosening of the skin from the sausage material impairing movement of the sausage mass in any manner. Its transparency and therefore its fresh appearance is secured due to the fact that in being pressed through the annular nozzle the outer surface is p0 ished.

I claim: 1. A method for producing seamless artificial sausage skins, comprising, pressing a thin film of albuminous material onto a tubular fabric, drying the film on the fabric, .and 2111551 separatingthe tubular fabric from .the

I .2. A method for producing seamless artimovement of the same 'it -is.clear.=lficial sausage skins, compnsin'g, pressing a fthin film of albuminous material onto a itubular fabric, drying the film on the fabric, and then separating the tubular fabric from the film, the film being ressed onto .the

roducts of fabric by passing thev fa ric through an annular nozzle, and forcing the material through fabric. r

3. A method forproducing seamless artificial sausage skins, comprising, thin film of albuminous material onto a I tubular fabric, drying the film on the fabric, fiitiid then separating the tubular fabric from the film, the of material being pressed onto the fabric -Thy pressing the material between the outer side of the fabric and a nozzle, and positioninga core inside of the fabric and within the nozzle.

In testimony whereof I have signed my name to this specification.

OSKAR WALTER BECKER.

the nozzle on the outer side ofthe" pressing a 

